Hi Dragomir,

There is no "Expires" in REGISTER, so $hdr(expires) prints "<null>". Try $(hdr(Contact){uri.param,expires}).

Regards,

Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com

On 27.11.2017 13:46, Dragomir Haralambiev wrote:
Hello,

I try to get expires from REGISTER.
xlog("Expires=$hdr(expires)\n");

I receive this:
Expires=<null>

Here is REGISTER

Session Initiation Protocol (SIP as raw text)
    REGISTER sip:sip-server.com:5060 <http://sip-server.com:5060> SIP/2.0\r\n     Accept: application/reginfo+xml, application/sdp, application/simple-message-summary, message/sipfrag, multipart/mixed, multipart/related\r\n     Via: SIP/2.0/UDP 10.152.220.38:5062;branch=z9hG4bKde569c7a0f7678fe1;rport\r\n
    Max-Forwards: 70\r\n
    From: "55555555" <sip:55555...@sip-server.com:5060 <http://sip:55555...@sip-server.com:5060>>;tag=026b9b8a13\r\n     To: "55555555" <sip:55555...@sip-server.com:5060 <http://sip:55555...@sip-server.com:5060>>\r\n
    Call-ID: de52071eacc30295\r\n
    CSeq: 448743846 REGISTER\r\n
    Allow: ACK, BYE, CANCEL, INVITE, MESSAGE, NOTIFY, OPTIONS, REFER, SUBSCRIBE, UPDATE\r\n     Contact: <sip:55555555@10.152.220.38:5062 <http://sip:55555555@10.152.220.38:5062>>;audio;expires=120\r\n
    User-Agent: Media5-fone/4.25.4.13060 Android/8.0.0\r\n
    Content-Length: 0\r\n
    \r\n


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